[github/wallabag/wallabag.git] / src / Wallabag / CoreBundle / Helper / EntriesExport.php

<?php

namespace Wallabag\CoreBundle\Helper;

use JMS\Serializer;
use JMS\Serializer\SerializationContext;
use JMS\Serializer\SerializerBuilder;
use PHPePub\Core\EPub;
use PHPePub\Core\Structure\OPF\DublinCore;
use Symfony\Component\HttpFoundation\Response;
use Craue\ConfigBundle\Util\Config;

/**
 * This class doesn't have unit test BUT it's fully covered by a functional test with ExportControllerTest.
 */
class EntriesExport
{
    private $wallabagUrl;
    private $logoPath;
    private $title = '';
    private $entries = array();
    private $authors = array('wallabag');
    private $language = '';
    private $tags = array();
    private $footerTemplate = '<div style="text-align:center;">
        <p>Produced by wallabag with %EXPORT_METHOD%</p>
        <p>Please open <a href="https://github.com/wallabag/wallabag/issues">an issue</a> if you have trouble with the display of this E-Book on your device.</p>
        </div';

    /**
     * @param Config $craueConfig CraueConfig instance to get wallabag instance url from database
     * @param string $logoPath    Path to the logo FROM THE BUNDLE SCOPE
     */
    public function __construct(Config $craueConfig, $logoPath)
    {
        $this->wallabagUrl = $craueConfig->get('wallabag_url');
        $this->logoPath = $logoPath;
    }

    /**
     * Define entries.
     *
     * @param array|Entry $entries An array of entries or one entry
     */
    public function setEntries($entries)
    {
        if (!is_array($entries)) {
            $this->language = $entries->getLanguage();
            $entries = array($entries);
        }

        $this->entries = $entries;

        foreach ($entries as $entry) {
            $this->tags[] = $entry->getTags();
        }

        return $this;
    }

    /**
     * Sets the category of which we want to get articles, or just one entry.
     *
     * @param string $method Method to get articles
     */
    public function updateTitle($method)
    {
        $this->title = $method.' articles';

        if ('entry' === $method) {
            $this->title = $this->entries[0]->getTitle();
        }

        return $this;
    }

    /**
     * Sets the output format.
     *
     * @param string $format
     */
    public function exportAs($format)
    {
        $functionName = 'produce'.ucfirst($format);
        if (method_exists($this, $functionName)) {
            return $this->$functionName();
        }

        throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format));
    }

    /**
     * Use PHPePub to dump a .epub file.
     */
    private function produceEpub()
    {
        /*
         * Start and End of the book
         */
        $content_start =
            "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
            ."<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
            .'<head>'
            ."<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
            ."<title>wallabag articles book</title>\n"
            ."</head>\n"
            ."<body>\n";

        $bookEnd = "</body>\n</html>\n";

        $book = new EPub(EPub::BOOK_VERSION_EPUB3);

        /*
         * Book metadata
         */

        $book->setTitle($this->title);
        // Could also be the ISBN number, prefered for published books, or a UUID.
        $book->setIdentifier($this->title, EPub::IDENTIFIER_URI);
        // Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
        $book->setLanguage($this->language);
        $book->setDescription('Some articles saved on my wallabag');

        foreach ($this->authors as $author) {
            $book->setAuthor($author, $author);
        }

        // I hope this is a non existant address :)
        $book->setPublisher('wallabag', 'wallabag');
        // Strictly not needed as the book date defaults to time().
        $book->setDate(time());
        $book->setSourceURL($this->wallabagUrl);

        $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP');
        $book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag');

        /*
         * Front page
         */
        if (file_exists($this->logoPath)) {
            $book->setCoverImage('Cover.png', file_get_contents($this->logoPath), 'image/png');
        }

        $book->addChapter('Notices', 'Cover2.html', $content_start.$this->getExportInformation('PHPePub').$bookEnd);

        $book->buildTOC();

        /*
         * Adding actual entries
         */

        // set tags as subjects
        foreach ($this->entries as $entry) {
            foreach ($this->tags as $tag) {
                $book->setSubject($tag['value']);
            }

            $chapter = $content_start.$entry->getContent().$bookEnd;
            $book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
        }

        return Response::create(
            $book->getBook(),
            200,
            array(
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/epub+zip',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.epub"',
                'Content-Transfer-Encoding' => 'binary',
            )
        );
    }

    /**
     * Use PHPMobi to dump a .mobi file.
     */
    private function produceMobi()
    {
        $mobi = new \MOBI();
        $content = new \MOBIFile();

        /*
         * Book metadata
         */
        $content->set('title', $this->title);
        $content->set('author', implode($this->authors));
        $content->set('subject', $this->title);

        /*
         * Front page
         */
        $content->appendParagraph($this->getExportInformation('PHPMobi'));
        if (file_exists($this->logoPath)) {
            $content->appendImage(imagecreatefrompng($this->logoPath));
        }
        $content->appendPageBreak();

        /*
         * Adding actual entries
         */
        foreach ($this->entries as $entry) {
            $content->appendChapterTitle($entry->getTitle());
            $content->appendParagraph($entry->getContent());
            $content->appendPageBreak();
        }
        $mobi->setContentProvider($content);

        // the browser inside Kindle Devices doesn't likes special caracters either, we limit to A-z/0-9
        $this->title = preg_replace('/[^A-Za-z0-9\-]/', '', $this->title);

        return Response::create(
            $mobi->toString(),
            200,
            array(
                'Accept-Ranges' => 'bytes',
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/x-mobipocket-ebook',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.mobi"',
                'Content-Transfer-Encoding' => 'binary',
            )
        );
    }

    /**
     * Use TCPDF to dump a .pdf file.
     */
    private function producePdf()
    {
        $pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);

        /*
         * Book metadata
         */
        $pdf->SetCreator(PDF_CREATOR);
        $pdf->SetAuthor('wallabag');
        $pdf->SetTitle($this->title);
        $pdf->SetSubject('Articles via wallabag');
        $pdf->SetKeywords('wallabag');

        /*
         * Front page
         */
        $pdf->AddPage();
        $intro = '<h1>'.$this->title.'</h1>'.$this->getExportInformation('tcpdf');

        $pdf->writeHTMLCell(0, 0, '', '', $intro, 0, 1, 0, true, '', true);

        /*
         * Adding actual entries
         */
        foreach ($this->entries as $entry) {
            foreach ($this->tags as $tag) {
                $pdf->SetKeywords($tag['value']);
            }

            $pdf->AddPage();
            $html = '<h1>'.$entry->getTitle().'</h1>';
            $html .= $entry->getContent();

            $pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true);
        }

        // set image scale factor
        $pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);

        return Response::create(
            $pdf->Output('', 'S'),
            200,
            array(
                'Content-Description' => 'File Transfer',
                'Content-type' => 'application/pdf',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.pdf"',
                'Content-Transfer-Encoding' => 'binary',
            )
        );
    }

    /**
     * Inspired from CsvFileDumper.
     */
    private function produceCsv()
    {
        $delimiter = ';';
        $enclosure = '"';
        $handle = fopen('php://memory', 'rb+');

        fputcsv($handle, array('Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language'), $delimiter, $enclosure);

        foreach ($this->entries as $entry) {
            fputcsv(
                $handle,
                array(
                    $entry->getTitle(),
                    $entry->getURL(),
                    // remove new line to avoid crazy results
                    str_replace(array("\r\n", "\r", "\n"), '', $entry->getContent()),
                    implode(', ', $entry->getTags()->toArray()),
                    $entry->getMimetype(),
                    $entry->getLanguage(),
                ),
                $delimiter,
                $enclosure
            );
        }

        rewind($handle);
        $output = stream_get_contents($handle);
        fclose($handle);

        return Response::create(
            $output,
            200,
            array(
                'Content-type' => 'application/csv',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.csv"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        );
    }

    private function produceJson()
    {
        return Response::create(
            $this->prepareSerializingContent('json'),
            200,
            array(
                'Content-type' => 'application/json',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        );
    }

    private function produceXml()
    {
        return Response::create(
            $this->prepareSerializingContent('xml'),
            200,
            array(
                'Content-type' => 'application/xml',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.xml"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        );
    }

    private function produceTxt()
    {
        $content = '';
        $bar = str_repeat('=', 100);
        foreach ($this->entries as $entry) {
            $content .= "\n\n".$bar."\n\n".$entry->getTitle()."\n\n".$bar."\n\n";
            $content .= trim(preg_replace('/\s+/S', ' ', strip_tags($entry->getContent())))."\n\n";
        }

        return Response::create(
            $content,
            200,
            array(
                'Content-type' => 'text/plain',
                'Content-Disposition' => 'attachment; filename="'.$this->title.'.txt"',
                'Content-Transfer-Encoding' => 'UTF-8',
            )
        );
    }

    /**
     * Return a Serializer object for producing processes that need it (JSON & XML).
     *
     * @return Serializer
     */
    private function prepareSerializingContent($format)
    {
        $serializer = SerializerBuilder::create()->build();

        return $serializer->serialize(
            $this->entries,
            $format,
            SerializationContext::create()->setGroups(array('entries_for_user'))
        );
    }

    /**
     * Return a kind of footer / information for the epub.
     *
     * @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi
     *
     * @return string
     */
    private function getExportInformation($type)
    {
        $info = str_replace('%EXPORT_METHOD%', $type, $this->footerTemplate);

        if ('tcpdf' === $type) {
            return str_replace('%IMAGE%', '<img src="'.$this->logoPath.'" />', $info);
        }

        return str_replace('%IMAGE%', '', $info);
    }
}
Commit	Line	Data
03690d13 TC	1	<?php
	2
	3	namespace Wallabag\CoreBundle\Helper;
	4
619cc453 JB	5	use JMS\Serializer;
	6	use JMS\Serializer\SerializationContext;
	7	use JMS\Serializer\SerializerBuilder;
03690d13 TC	8	use PHPePub\Core\EPub;
03690d13 TC	9	use PHPePub\Core\Structure\OPF\DublinCore;
add597ba	10	use Symfony\Component\HttpFoundation\Response;
63e40f2d	11	use Craue\ConfigBundle\Util\Config;
03690d13	12
cceca9ea JB	13	/**
	14	* This class doesn't have unit test BUT it's fully covered by a functional test with ExportControllerTest.
	15	*/
03690d13 TC	16	class EntriesExport
03690d13 TC	17	{
add597ba JB	18	private $wallabagUrl;
	19	private $logoPath;
	20	private $title = '';
	21	private $entries = array();
03690d13	22	private $authors = array('wallabag');
add597ba JB	23	private $language = '';
	24	private $tags = array();
	25	private $footerTemplate = '<div style="text-align:center;">
	26	<p>Produced by wallabag with %EXPORT_METHOD%</p>
	27	<p>Please open <a href="https://github.com/wallabag/wallabag/issues">an issue</a> if you have trouble with the display of this E-Book on your device.</p>
	28	</div';
03690d13	29
add597ba	30	/**
63e40f2d	31	* @param Config $craueConfig CraueConfig instance to get wallabag instance url from database
add597ba JB	32	* @param string $logoPath Path to the logo FROM THE BUNDLE SCOPE
add597ba JB	33	*/
63e40f2d	34	public function __construct(Config $craueConfig, $logoPath)
03690d13	35	{
63e40f2d	36	$this->wallabagUrl = $craueConfig->get('wallabag_url');
add597ba JB	37	$this->logoPath = $logoPath;
	38	}
	39
	40	/**
	41	* Define entries.
	42	*
	43	* @param array\|Entry $entries An array of entries or one entry
	44	*/
	45	public function setEntries($entries)
	46	{
	47	if (!is_array($entries)) {
	48	$this->language = $entries->getLanguage();
	49	$entries = array($entries);
	50	}
	51
03690d13 TC	52	$this->entries = $entries;
	53
	54	foreach ($entries as $entry) {
	55	$this->tags[] = $entry->getTags();
	56	}
add597ba JB	57
add597ba JB	58	return $this;
03690d13 TC	59	}
	60
	61	/**
	62	* Sets the category of which we want to get articles, or just one entry.
	63	*
	64	* @param string $method Method to get articles
	65	*/
add597ba	66	public function updateTitle($method)
03690d13	67	{
add597ba JB	68	$this->title = $method.' articles';
	69
	70	if ('entry' === $method) {
	71	$this->title = $this->entries[0]->getTitle();
03690d13	72	}
add597ba JB	73
add597ba JB	74	return $this;
03690d13 TC	75	}
	76
	77	/**
	78	* Sets the output format.
	79	*
	80	* @param string $format
	81	*/
	82	public function exportAs($format)
	83	{
8f336fda JB	84	$functionName = 'produce'.ucfirst($format);
	85	if (method_exists($this, $functionName)) {
	86	return $this->$functionName();
03690d13	87	}
add597ba JB	88
add597ba JB	89	throw new \InvalidArgumentException(sprintf('The format "%s" is not yet supported.', $format));
03690d13 TC	90	}
03690d13 TC	91
add597ba JB	92	/**
	93	* Use PHPePub to dump a .epub file.
	94	*/
03690d13 TC	95	private function produceEpub()
	96	{
	97	/*
	98	* Start and End of the book
	99	*/
	100	$content_start =
	101	"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
	102	."<html xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n"
	103	.'<head>'
	104	."<meta http-equiv=\"Default-Style\" content=\"text/html; charset=utf-8\" />\n"
add597ba	105	."<title>wallabag articles book</title>\n"
03690d13 TC	106	."</head>\n"
	107	."<body>\n";
	108
	109	$bookEnd = "</body>\n</html>\n";
	110
	111	$book = new EPub(EPub::BOOK_VERSION_EPUB3);
	112
	113	/*
	114	* Book metadata
	115	*/
	116
	117	$book->setTitle($this->title);
add597ba JB	118	// Could also be the ISBN number, prefered for published books, or a UUID.
	119	$book->setIdentifier($this->title, EPub::IDENTIFIER_URI);
	120	// Not needed, but included for the example, Language is mandatory, but EPub defaults to "en". Use RFC3066 Language codes, such as "en", "da", "fr" etc.
	121	$book->setLanguage($this->language);
	122	$book->setDescription('Some articles saved on my wallabag');
03690d13 TC	123
	124	foreach ($this->authors as $author) {
	125	$book->setAuthor($author, $author);
	126	}
	127
add597ba JB	128	// I hope this is a non existant address :)
	129	$book->setPublisher('wallabag', 'wallabag');
	130	// Strictly not needed as the book date defaults to time().
	131	$book->setDate(time());
	132	$book->setSourceURL($this->wallabagUrl);
03690d13 TC	133
	134	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'PHP');
	135	$book->addDublinCoreMetadata(DublinCore::CONTRIBUTOR, 'wallabag');
	136
	137	/*
	138	* Front page
	139	*/
add597ba JB	140	if (file_exists($this->logoPath)) {
	141	$book->setCoverImage('Cover.png', file_get_contents($this->logoPath), 'image/png');
	142	}
03690d13	143
add597ba	144	$book->addChapter('Notices', 'Cover2.html', $content_start.$this->getExportInformation('PHPePub').$bookEnd);
03690d13 TC	145
	146	$book->buildTOC();
	147
	148	/*
	149	* Adding actual entries
	150	*/
	151
add597ba JB	152	// set tags as subjects
	153	foreach ($this->entries as $entry) {
	154	foreach ($this->tags as $tag) {
	155	$book->setSubject($tag['value']);
	156	}
03690d13 TC	157
	158	$chapter = $content_start.$entry->getContent().$bookEnd;
	159	$book->addChapter($entry->getTitle(), htmlspecialchars($entry->getTitle()).'.html', $chapter, true, EPub::EXTERNAL_REF_ADD);
	160	}
add597ba JB	161
	162	return Response::create(
	163	$book->getBook(),
	164	200,
	165	array(
	166	'Content-Description' => 'File Transfer',
	167	'Content-type' => 'application/epub+zip',
	168	'Content-Disposition' => 'attachment; filename="'.$this->title.'.epub"',
	169	'Content-Transfer-Encoding' => 'binary',
	170	)
f898102c	171	);
03690d13 TC	172	}
03690d13 TC	173
add597ba JB	174	/**
	175	* Use PHPMobi to dump a .mobi file.
	176	*/
03690d13 TC	177	private function produceMobi()
	178	{
	179	$mobi = new \MOBI();
	180	$content = new \MOBIFile();
	181
	182	/*
	183	* Book metadata
	184	*/
03690d13 TC	185	$content->set('title', $this->title);
	186	$content->set('author', implode($this->authors));
	187	$content->set('subject', $this->title);
	188
	189	/*
	190	* Front page
	191	*/
add597ba JB	192	$content->appendParagraph($this->getExportInformation('PHPMobi'));
	193	if (file_exists($this->logoPath)) {
	194	$content->appendImage(imagecreatefrompng($this->logoPath));
	195	}
03690d13 TC	196	$content->appendPageBreak();
	197
	198	/*
	199	* Adding actual entries
	200	*/
03690d13 TC	201	foreach ($this->entries as $entry) {
	202	$content->appendChapterTitle($entry->getTitle());
	203	$content->appendParagraph($entry->getContent());
	204	$content->appendPageBreak();
	205	}
	206	$mobi->setContentProvider($content);
	207
	208	// the browser inside Kindle Devices doesn't likes special caracters either, we limit to A-z/0-9
	209	$this->title = preg_replace('/[^A-Za-z0-9\-]/', '', $this->title);
	210
add597ba JB	211	return Response::create(
	212	$mobi->toString(),
	213	200,
	214	array(
	215	'Accept-Ranges' => 'bytes',
	216	'Content-Description' => 'File Transfer',
	217	'Content-type' => 'application/x-mobipocket-ebook',
	218	'Content-Disposition' => 'attachment; filename="'.$this->title.'.mobi"',
	219	'Content-Transfer-Encoding' => 'binary',
	220	)
f898102c	221	);
03690d13 TC	222	}
03690d13 TC	223
add597ba JB	224	/**
	225	* Use TCPDF to dump a .pdf file.
	226	*/
8f336fda	227	private function producePdf()
03690d13 TC	228	{
	229	$pdf = new \TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
	230
	231	/*
	232	* Book metadata
	233	*/
03690d13 TC	234	$pdf->SetCreator(PDF_CREATOR);
	235	$pdf->SetAuthor('wallabag');
	236	$pdf->SetTitle($this->title);
	237	$pdf->SetSubject('Articles via wallabag');
	238	$pdf->SetKeywords('wallabag');
	239
	240	/*
	241	* Front page
	242	*/
03690d13	243	$pdf->AddPage();
add597ba	244	$intro = '<h1>'.$this->title.'</h1>'.$this->getExportInformation('tcpdf');
03690d13 TC	245
	246	$pdf->writeHTMLCell(0, 0, '', '', $intro, 0, 1, 0, true, '', true);
	247
	248	/*
	249	* Adding actual entries
	250	*/
03690d13 TC	251	foreach ($this->entries as $entry) {
	252	foreach ($this->tags as $tag) {
	253	$pdf->SetKeywords($tag['value']);
	254	}
	255
	256	$pdf->AddPage();
	257	$html = '<h1>'.$entry->getTitle().'</h1>';
	258	$html .= $entry->getContent();
add597ba	259
03690d13 TC	260	$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true);
	261	}
	262
	263	// set image scale factor
	264	$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
	265
add597ba JB	266	return Response::create(
	267	$pdf->Output('', 'S'),
	268	200,
	269	array(
	270	'Content-Description' => 'File Transfer',
	271	'Content-type' => 'application/pdf',
	272	'Content-Disposition' => 'attachment; filename="'.$this->title.'.pdf"',
	273	'Content-Transfer-Encoding' => 'binary',
	274	)
f898102c	275	);
03690d13 TC	276	}
03690d13 TC	277
add597ba JB	278	/**
	279	* Inspired from CsvFileDumper.
	280	*/
8f336fda	281	private function produceCsv()
03690d13	282	{
add597ba JB	283	$delimiter = ';';
	284	$enclosure = '"';
	285	$handle = fopen('php://memory', 'rb+');
03690d13	286
add597ba	287	fputcsv($handle, array('Title', 'URL', 'Content', 'Tags', 'MIME Type', 'Language'), $delimiter, $enclosure);
03690d13	288
03690d13	289	foreach ($this->entries as $entry) {
add597ba JB	290	fputcsv(
	291	$handle,
	292	array(
	293	$entry->getTitle(),
	294	$entry->getURL(),
cceca9ea JB	295	// remove new line to avoid crazy results
cceca9ea JB	296	str_replace(array("\r\n", "\r", "\n"), '', $entry->getContent()),
add597ba JB	297	implode(', ', $entry->getTags()->toArray()),
	298	$entry->getMimetype(),
	299	$entry->getLanguage(),
	300	),
	301	$delimiter,
	302	$enclosure
	303	);
	304	}
	305
	306	rewind($handle);
	307	$output = stream_get_contents($handle);
	308	fclose($handle);
	309
	310	return Response::create(
	311	$output,
	312	200,
	313	array(
	314	'Content-type' => 'application/csv',
	315	'Content-Disposition' => 'attachment; filename="'.$this->title.'.csv"',
	316	'Content-Transfer-Encoding' => 'UTF-8',
	317	)
f898102c	318	);
add597ba JB	319	}
add597ba JB	320
8f336fda	321	private function produceJson()
b3cc1a14	322	{
b3cc1a14	323	return Response::create(
8ac95cbf	324	$this->prepareSerializingContent('json'),
b3cc1a14 TC	325	200,
	326	array(
	327	'Content-type' => 'application/json',
	328	'Content-Disposition' => 'attachment; filename="'.$this->title.'.json"',
	329	'Content-Transfer-Encoding' => 'UTF-8',
	330	)
f898102c	331	);
b3cc1a14 TC	332	}
b3cc1a14 TC	333
8f336fda	334	private function produceXml()
b3cc1a14	335	{
b3cc1a14	336	return Response::create(
8ac95cbf	337	$this->prepareSerializingContent('xml'),
b3cc1a14 TC	338	200,
	339	array(
	340	'Content-type' => 'application/xml',
	341	'Content-Disposition' => 'attachment; filename="'.$this->title.'.xml"',
	342	'Content-Transfer-Encoding' => 'UTF-8',
	343	)
f898102c	344	);
b3cc1a14	345	}
8ac95cbf	346
8f336fda	347	private function produceTxt()
6c08fb68 TC	348	{
6c08fb68 TC	349	$content = '';
d3f31ec4	350	$bar = str_repeat('=', 100);
6c08fb68	351	foreach ($this->entries as $entry) {
d3f31ec4 JB	352	$content .= "\n\n".$bar."\n\n".$entry->getTitle()."\n\n".$bar."\n\n";
d3f31ec4 JB	353	$content .= trim(preg_replace('/\s+/S', ' ', strip_tags($entry->getContent())))."\n\n";
6c08fb68	354	}
d3f31ec4	355
6c08fb68 TC	356	return Response::create(
	357	$content,
	358	200,
	359	array(
	360	'Content-type' => 'text/plain',
	361	'Content-Disposition' => 'attachment; filename="'.$this->title.'.txt"',
	362	'Content-Transfer-Encoding' => 'UTF-8',
	363	)
f898102c	364	);
6c08fb68 TC	365	}
6c08fb68 TC	366
b3cc1a14 TC	367	/**
	368	* Return a Serializer object for producing processes that need it (JSON & XML).
	369	*
	370	* @return Serializer
	371	*/
8ac95cbf	372	private function prepareSerializingContent($format)
b3cc1a14	373	{
268e9e72	374	$serializer = SerializerBuilder::create()->build();
b3cc1a14	375
cceca9ea JB	376	return $serializer->serialize(
	377	$this->entries,
	378	$format,
	379	SerializationContext::create()->setGroups(array('entries_for_user'))
	380	);
b3cc1a14 TC	381	}
b3cc1a14 TC	382
add597ba JB	383	/**
	384	* Return a kind of footer / information for the epub.
	385	*
	386	* @param string $type Generator of the export, can be: tdpdf, PHPePub, PHPMobi
	387	*
	388	* @return string
	389	*/
	390	private function getExportInformation($type)
	391	{
	392	$info = str_replace('%EXPORT_METHOD%', $type, $this->footerTemplate);
	393
	394	if ('tcpdf' === $type) {
	395	return str_replace('%IMAGE%', '<img src="'.$this->logoPath.'" />', $info);
03690d13	396	}
add597ba JB	397
add597ba JB	398	return str_replace('%IMAGE%', '', $info);
03690d13 TC	399	}
03690d13 TC	400	}